Computer Science/
Informatics Practices - 308
Syllabus for Class 12
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Computer Science/Informatics Practices
- 308
Note:
There will be one Question Paper which will contain Two Sections i.e. Section A and Section B
[B1 and B2].
Section A will have 15 questions covering both i.e. Computer Science/Information Practices which
will be compulsory for all candidates
Section B1 will have 35 questions from Computer Science out of which 25 questions need to be
attempted.
Section B2 will have 35 questions purely from Information Practices out of which 25 question will
be attempted.
Section A
Exception and File Handling in Python
Exception Handling: syntax errors, exceptions, need of exception handling, user-defined
exceptions, raising exceptions, handling exceptions, catching exceptions, Try - except - else
clause, Try - finally clause, recovering and continuing with finally, built-in exception classes.
File Handling: text file and binary file, file types, open and close files, reading and writing text
files, reading and writing binary files using pickle module, file access modes.
Database Concepts
Introduction to database concepts, difference between database and file system, relational data
model: concept of domain, tuple, relation, keys - candidate key, primary key, alternate key,
foreign key;
Relational algebra: selection, projection, union, set difference and cartesian product;
Structured Query Language
Advantages of using Structured Query Language, Data Definition Language, Data Query
Language and Data Manipulation Language, Introduction to MySQL, Creating a database using
MySQL, Data Types
Data Definition: CREATE TABLE, DROP TABLE, ALTER TABLE,
Data Query: SELECT, FROM, WHERE
Data Manipulation: INSERT, UPDATE, DELETE
Math functions: POWER (), ROUND (), MOD ().
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Text functions: UCASE ()/UPPER (), LCASE ()/LOWER (), MID ()/SUBSTRING ()/SUBSTR (),
LENGTH (), LEFT (), RIGHT (), INSTR (), LTRIM (), RTRIM (), TRIM ().
Date Functions: NOW (), DATE (), MONTH (), MONTHNAME (), YEAR (), DAY (),
DAYNAME ().
Aggregate Functions: MAX (), MIN (), AVG (), SUM (), COUNT (); using COUNT
(*). Querying and manipulating data using Group by, Having, Order by.
Operations on Relations - Union, Intersection, Minus, Cartesian Product, JOIN
Computer Networks
Introduction to computer networks, Evolution of networking,
Network types: LAN, WAN, MAN
Network devices: Modem, Ethernet Card, Repeater, Hub, Switch, Router, Gateway.
Network Topologies: Mesh, Ring, Bus, Star, and Tree topologies
Basic concept of MAC and IP Address
Difference between Internet and web
Section B1: Computer Science
Chapter 1: Exception and File Handling in Python
Exception Handling: syntax errors, exceptions, need of exception handling, user-defined
exceptions, raising exceptions, handling exceptions, catching exceptions, Try - except - else
clause, Try - finally clause, recovering and continuing with finally, built-in exception classes.
File Handling: text file and binary file, file types, open and close files, reading and writing text
files, reading and writing binary files using pickle module, file access modes.
Chapter 2: Stack
Stack (List Implementation): Introduction to stack (LIFO Operations), operations on stack
(PUSH and POP) and its implementation in python. Expressions in Prefix, Infix and postfix
notations, evaluating arithmetic expressions using stack, conversion of Infix expression to
postfix expression
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Chapter 3: Queue
Queue (List Implementation): Introduction to Queue (FIFO), Operations on Queue (INSERT and
DELETE) and its implementation in Python.
Introduction to DQueue and its implementation in Python.
Chapter 4: Searching
Searching: Sequential search, Binary search, Analysis of Sequential and Binary Search. Dry run to
identify best, worst and average cases. Implementation of searching techniques in Python.
Chapter 5: Sorting
Overview of sorting techniques, Bubble Sort, Selection Sort and Insertion Sort. Dry run to
identify best, worst and average cases. Implementation of sorting techniques in Python.
Hashing: Hash Functions, Collision Resolution, Implementing the Map Abstract Data Type.
Chapter 6: Understanding Data
Data and its purpose, collection and organization; understanding data using statistical methods:
mean, median, standard deviation, variance; data interpretation; visualization of data.
Chapter 7: Database Concepts
Introduction to database concepts, difference between database and file system, relational data
model: concept of domain, tuple, relation, keys - candidate key, primary key, alternate key,
foreign key;
Relational algebra: selection, projection, union, set difference and cartesian product;
Chapter 8: Structured Query Language
Advantages of using Structured Query Language, Data Definition Language, Data Query
Language and Data Manipulation Language, Introduction to MySQL, Creating a database using
MySQL, Data Types
Data Definition: CREATE TABLE, DROP TABLE, ALTER TABLE,
Data Query: SELECT, FROM, WHERE
Data Manipulation: INSERT, UPDATE, DELETE
Math functions: POWER (), ROUND (), MOD ().
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Text functions: UCASE ()/UPPER (), LCASE ()/LOWER (), MID ()/SUBSTRING ()/SUBSTR
(), LENGTH (), LEFT (), RIGHT (), INSTR (), LTRIM (), RTRIM (), TRIM ().
Date Functions: NOW (), DATE (), MONTH (), MONTHNAME (), YEAR (), DAY (),
DAYNAME ().
Aggregate Functions: MAX (), MIN (), AVG (), SUM (), COUNT (); using COUNT
(*). Querying and manipulating data using Group by, Having, Order by.
Operations on Relations - Union, Intersection, Minus, Cartesian Product, JOIN
Chapter 9: Computer Networks
Introduction to computer networks, Evolution of networking,
Network types: LAN, WAN, MAN
Network devices: Modem, Ethernet Card, Repeater, Hub, Switch, Router, Gateway.
Network Topologies: Mesh, Ring, Bus, Star, and Tree topologies
Basic concept of MAC and IP Address
Difference between Internet and web
Section B2: Information Practices
Chapter 1: Database Query using SQL
Math functions: POWER (), ROUND (), MOD ().
Text functions: UCASE ()/UPPER (), LCASE ()/LOWER (), MID ()/SUBSTRING
()/SUBSTR (), LENGTH (), LEFT (), RIGHT (), INSTR (), LTRIM (), RTRIM (), TRIM
().
Date Functions: NOW (), DATE (), MONTH (), MONTHNAME (), YEAR (), DAY (),
DAYNAME ().
Aggregate Functions: MAX (), MIN (), AVG (), SUM (), COUNT (); using
COUNT (*). Querying and manipulating data using Group by, Having,
Order by.
Operations on Relations - Union, Intersection, Minus, Cartesian Product, JOIN
Chapter 2: Data Handling using Pandas – I
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Introduction to
Python libraries- Pandas,
NumPy,
Matplotlib. Data structures in Pandas - Series and
DataFrames.
Series: Creation of Series from – and array, dictionary, scalar value; mathematical operations;
Head and Tail functions; Selection, Indexing, and Slicing.
DataFrames: creation - from the dictionary of Series, list of dictionaries, Text/CSV files; display;
iteration; Operations on Rows and columns: add, select, delete, rename; Head and Tail functions;
Indexing using Labels, Boolean Indexing; Styling & Formatting data, Head and Tail functions;
Joining, Merging and Concatenations.
Importing/Exporting Data between CSV files and DataFrames.
Chapter 3: Data Handling using Pandas – II
Descriptive Statistics: max, min, count, sum, mean, median, mode, quartile, Standard
deviation, variance.
DataFrame operations: Aggregation, group by, Sorting, Deleting and Renaming Index, Pivoting.
Handling missing values – dropping and filling.
Importing/Exporting Data between MySQL database and Pandas.
Chapter 4: Plotting Data using Matplotlib
Purpose of plotting; drawing and saving t h e following types of plots using Matplotlib – line
plot, bar graph, histogram, pie chart, frequency polygon, box plot, and scatter plot.
Customizing plots: color, style (dashed, dotted), width; adding label, title, and legend in plots.
Chapter 5: Introduction to Computer Networks
Introduction to Networks, Types of networks: LAN, MAN, WAN.
Network Devices: modem, hub, switch, repeater, router, gateway
Network Topologies: Star, Bus, Tree, Mesh.
Introduction to Internet, URL, WWW, and its applications- Web, email, Chat, VoIP.
Website: Introduction, the difference between a website and webpage, static vs dynamic web
page, web server, and hosting of a website.
Web Browsers: Introduction, commonly used browsers, browser settings, add-ons and plugins, cookies.
Chapter 6: Societal Impacts
Digital footprint, Etiquettes for Net surfing and for communicating through social media, data
protection, Intellectual Property Rights (IPR) and their violation, plagiarism licensing and
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copyrights, Free and Open Source Software (FOSS), Cybercrime and cyber laws, hacking,
phishing, cyberbullying, Overview of Indian IT Act, preventing cybercrime.
E-waste its a hazard and management
Awareness about health concerns related to the usage of technology like effect on eyesight,
physiological issues, and ergonomic aspects.
Chapter 10: Data Communication
Concept of communication, Types of Data Communication, switching techniques
Communication Media: Wired Technologies – Twisted pair cable, Co-axial cable, Ethernet
Cable, Optical Fibre;
Introduction
Wireless
to
mobile
Technologies
telecommunication
–
Bluetooth,
technologies
WLAN,
Infrared,
Microwave
Network Protocol: Need for Protocol, Categorization and Examples of protocol, HTTP, FTP, IP,
PPP; electronic mail protocol
Concept of Channel, Bandwidth (Hz, KHz, MHz) and Data Transfer rate (bps, Kbps, Mbps,
Gbps, Tbps)
Chapter 11: Security Aspects
Threats and prevention: Viruses, Worms, Trojan horse, Spam, Cookies, Adware, Firewall, http
vs https
Network Security Concepts: Firewall, Cookies, Hackers and Crackers
Antivirus and their workings
Network security threats: Denial of service, Intrusion problems, Snooping, Eavesdropping
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